A Transport for London (TfL) spokesman said: "We are advising spectators going to Stratford to use the wide range of other lines serving the Olympic Park, including national rail services from Liverpool Street and the District and Hammersmith & City lines, where passengers can use West Ham station with a short walk along the Greenway to the park."

More than 200,000 people will be at the park, including people heading to the 80,000-capacity Olympic Stadium for the start of athletics events.

TfL said Docklands Light Railway, Jubilee line, Central line and roads to the Olympic Park would be exceptionally busy on Friday and urged people who are not going to the Games to avoid the area.

Westfield shopping centre in Stratford will also be closed to shoppers until 17:00 BST on both Friday and Saturday to cope with the crowds.